v3.26.1
Cover Page - shares
 12 Months Ended
Dec. 31, 2025
Apr. 02, 2026
Document Information [Line Items]    
Document Type 20-F  
Document Registration Statement false  
Document Annual Report true  
Document Period End Date Dec. 31, 2025  
Current Fiscal Year End Date --12-31  
Document Transition Report false  
Document Shell Company Report false  
Entity File Number 001-38049  
Entity Registrant Name AZUL SA  
Entity Incorporation, State or Country Code D5  
Entity Address, Address Line One Avenida Marcos Penteado de Ulhôa Rodrigues, n. 939, 8th floorEdifício Jatobá, Condomínio Castelo Branco Office Park  
Entity Address, City or Town Barueri, State of São Paulo  
Entity Address, Postal Zip Code 06460-040  
Entity Address, Country BR  
Entity Well-known Seasoned Issuer No  
Entity Voluntary Filers No  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Accelerated Filer  
Entity Emerging Growth Company false  
ICFR Auditor Attestation Flag true  
Document Financial Statement Error Correction [Flag] false  
Document Accounting Standard International Financial Reporting Standards  
Entity Shell Company false  
Entity Bankruptcy Proceedings, Reporting Current false  
Amendment Flag false  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus FY  
Entity Central Index Key 0001432364  
Common shares    
Document Information [Line Items]    
Title of 12(g) Security Common Shares without par value  
Entity Common Stock, Shares Outstanding 2,128,965,121 54,913,287,951,407
No Trading Symbol Flag true  
Preferred shares    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding 896,039,753  
American Depositary Shares    
Document Information [Line Items]    
Title of 12(g) Security American Depositary Shares (as evidenced by American Depositary Receipts), each representing 500,000 Common Shares  
No Trading Symbol Flag true  
Business Contact    
Document Information [Line Items]    
Entity Address, Address Line One Avenida Marcos Penteado de Ulhôa Rodrigues, n. 939, 8th floorEdifício Jatobá, Condomínio Castelo Branco Office Park  
Entity Address, City or Town Barueri, State of São Paulo  
Entity Address, Postal Zip Code 06460-040  
Entity Address, Country BR  
Contact Personnel Name Alexandre Wagner Malfitani  
Contact Personnel Email Address invest@voeazul.com.br  
Country Region +55  
City Area Code 11  
Local Phone Number 4831-2880